Light capsules shaped by curvilinear meta-surfaces

Abstract

We propose a simple yet efficient method for generating in-plane hollow beams with a nearly-full circular light shell without the contribution of backward propagating waves. The method relies on modulating the phase in the near field of a centro-symmetric optical wavefront, such as that from a high-numericalaperture focused wave field. We illustrate how beam acceleration may be carried out by using an ultranarrow non-flat meta-surface formed by engineered plasmonic nanoslits. A mirrorsymmetric, with respect to the optical axis, circular caustic surface is numerically demonstrated that can be used as an optical bottle.

References in corpus (5)

• Nonparaxial Mathieu and Weber accelerating beams
• Non-Paraxial Accelerating Beams
• Sending femtosecond pulses in circles: highly non-paraxial accelerating beams
• Arbitrary non-paraxial accelerating periodic beams and spherical shaping of light
• Nonparaxial shape-preserving Airy beams with Bessel signature

Cited by in corpus (1)

• Metacoatings for wavelength scale, high NA plano-concave focusing lenses